Vibrant iridescent aqua, deep blue, clear, light blue and a bit of emerald green glass beads along with the sparkle of ocean shells are combined with our glossy black pebbles. The watercolor in most cases falls into a dark black bottom hue. The watercolor hue cast by black bottom pools can be either blue or green. Because of the intense color, they are highly influenced by their surroundings and sunlight. To set proper expectations and understand more about this product, please watch the overview video and visit our disclaimer page. Here are two popular videos variables that influence water color and product line differences.